Electric, electronic, optical, measuring, signaling, controlling and teaching apparatus and instruments namely electricity meters; gas meters; heat meters; water meters; energy cost allocators, all the afore-mentioned with direct display and/or with interface for wire line or wireless readout of the data; wireless data transmission modules and radio transmitters and radio receivers for reading of electricity, heat, water and gas meters; remote optical readers connected to the energy meters; devices for displaying energy consumption; data busses; room control systems for the control of temperature, humidity, lighting systems, and blinds, comprised of regulators, computer control stations, temperature sensors, radio transmitters and receivers, computer control stations, temperature sensors, radio transmitters and receivers; communication devices, namely telephone and computer hardware for telecommunications; computer software for telecommunications, namely, computer programs and/or databases for telecommunications systems, computer operating systems, business management systems, information networks, and/or communications networks

Installation, maintenance, and/or repair in the field of communications technology, telecommunications networks and/or equipment; repair, installation and maintenance of water consumption measurement equipment and systems and of room control equipment and systems, namely water meters, heat meters, electricity meters, gas meters, energy cost allocators, wireless data transmission modules, radio transmitters and radio receivers for reading of electricity, heat, water and gas meters, remote optical readers connected to the energy meters, devices for displaying energy consumption, data busses, receivers reading of electricity, heat, water and gas meters, data busses and systems for the control of temperature of temperature, humidity, lighting systems, and blinds, comprised of regulators, computer control stations, temperature sensors, radio transmitters and receivers, computer control stations, temperature sensors, radio transmitters and receivers; communication devices

Telecommunications services, namely, personal and business communication services, electronic transmission of energy and water consumption data and electronic transmission of control and status information from building management systems and domestic appliances to central computer control stations

Computer programming services for others; planning and development for third parties of readout systems for devices for the measurement of energy or water consumption, room control systems and communication systems for household use; consulting in the fields of telecommunications technology and/or information technology; rental of computer software and/or computer hardware; installation, maintenance, and/or repair of computer software web page hosting services; operating electronic information networks; providing search engines for obtaining data on a global computer network; computer security services, namely, computer system administration for others